Home / 13,367.64-18,451.45-7,706.17

Finding the Fourth Proportional to 13,367.64, 18,451.45 and 7,706.17

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Solution

The fourth proportional to 13,367.64, 18,451.45 and 7,706.17 is: 10,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.64 : 18,451.45 = 7,706.17 : x
  2. Step 2: Convert to fraction form
    13,367.64/18,451.45 = 7,706.17/x
  3. Step 3: Cross multiply
    13,367.64x = 18,451.45 × 7,706.17
  4. Step 4: Simplify right side
    13,367.64x = 142,190,010.45
  5. Step 5: Solve for x
    x = 142,190,010.45/13,367.64
  6. Step 6: Final answer
    x = 10,636.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.